The hidden detail in Roxy Jacenko's designer dress

Roxy Jacenko was dressed to impress to celebrate her company, Sweaty Betty PR’s 15th birthday.

The Sydney-based PR queen wore a custom-made Velani gown for the intimate party held at Chin Chin in Sydney, and with its gorgeous shimmering black fabric and tulle skirt, it was hard to miss.

However, when it came to her stunning outfit, there was more than what met the eye.

Got a story tip? Send it to

Want more lifestyle and celebrity news? Follow Yahoo Lifestyle on Facebook, Twitter and Instagram.

Or sign up to our daily newsletter here.